Boot or shoe trimming machine.



m. 688,8!6. atented Dec. I7, 1901. E. E. ANGELL.

BOOT 0B SHOE'TBIMM ING MACHINE.

(Application filed Feb. 23, 1899.)

(No Model.)

UNITED Sra'rns Parana omen.

EDWIN E. ANGELL, OF SOMERVILLE, MASSACHUSETTS, ASSIGNO'R TO THE AMERICANSHOE MACHINERY COMPANY, OF PORTLAND, MAINE, A COR- PORATION OF MAINE.

BOOT OR SHOE TRIMMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 688,816, dated December1'7, 1901. Application filed February 23,1899. Serial No. 706,564. (Nomodel.)

To all whom it may concern.-

Be it known that I, EDWIN E. ANGELL, of Somerville, in the county ofMiddlesex and State of Massachusetts, have invented certain 5 new anduseful Improvements in Boot or Shoe Trimming Machines, of which thefollowing is a specification.

This invention relates to improvements in boot and shoe trimmingmachines, and espel cially to that class of such machines illustrated inthe patents to A. S. Vose,No. 560,825, dated May 26, 1896, and No.547,098, dated October 1, 1895.

My improvement consists of a new and especially-designed cutter-shieldwhich is provided with an annular lip for the protection of theranding-lips of the cutters and with annular lips on the inside whichextend out over the cutter-head for the purpose of centering the shieldon the cutter-head.

My invention consists of certain novel features hereinafter described,and particularly pointed out in the claims.

In the accompanying drawings, which illustrate aconstruction embodyingmyinvention,

Figure 1 is a side view of a portion of atrimming-machine and showingthe position of the cutter, cutter-shield, and counter-guard, thecounter-guard being moved slightly away .30 from its normal position toshow the cutter- V shield. Fig. 2isacross-sectional view through thecounter-guard and cutter-shield and sho wing in full lines the cutterand operating shaft. Fig. 3 is a detail sectional view of a portion ofthe counter-guard, showing the spokes and the annular protecting-lip forthe cutter-shield and illustrating the shape of the outer surface of thecounter-guard adapted to engage with the counter of the shoe. Figs. 4

and 5 represent, respectively, sideand end views of one of the cutters.Figs. 6 and 7 represent, respectively, plan and sectional views of thecuttershield reducing-nut. Figs. 8 and 9 represent, respectively,sectional and inside views of the cutter-shield.

Like letters of reference refer to like parts throughout the severalviews.

A represents a portion of a yoke-casting of a trimming-machine whichsupports at its upper end the hollow bearing A, in which revolves thecutter-shaft B.

On the outer end of the cutter-shaft B is mounted the cutter-head 0,provided with a series of blades D, which are secured in thecutter-head, and said blades are each provided with a randing-lip D.Arranged in relation to the cutter head and blades is a cutter-shield E,which is provided on its outer edge with a protecting-lip E, which, asshown in Fig. 2, projects over the edge of the rand- 6o ing-lip D of theblades D, and said shield is also provided with four protecting-lips Ewhich extend over a portion of the cutterhead and center the saidcutter-shield with relation to the cutter-head. For the recep- 5 tion'of the lips E the cutter-head is recessed or shouldered at E as shownin Fig. 2. In the spaces E between said lips the front edges D of theblades D are set in for the purpose of bringing the randing-lip D underthe protecting-lip E of the cutter-shield E.

In the center of the cutter-shield E there is a screw-threaded openingF, into which is screwed the reducing screw-threaded nut F, providedwith a suitable opening F for the reception of the attaching-screw E,which secures the cutter-head and cutter-shield to the cutter-shaft B.In opposite sides of the nut F are two slots F into which aspannerwrenoh is plaeedin order to secure the nut to the cutter-shield.The object of making this cutter-shield with the large threaded openingand a reducing-nut is for convenience of manufacture. By a reducing-nutis meant a nut which reduces the opening F, and a smaller opening F isprovided through which the attaching-screw is passed and holds thecutter-shield in its proper place.

The counter-guard G is mounted on the counter-guard spindle G and bymeans of the screw G2 and shoulder G is held in position as shown inFig. 2. The said counterguard is moved into and out of position withrelation to the cutter-shield in the manner illustrated in the VosePatent No. 560, 825, and the counter-guard is provided with the openingsH, through which the chips pass out, and thereby avoid clogging themachine. The

annular lip H of the counter-guard G extends out over and protects thecutter-shield E.

Said counter-guard is also formed with a groove H which conforms inshape to the counter of the shoe, so as to give a proper bearing andgage to the counter of the shoe while being trimmed. I do not limitmyself to the arrangement and construction shown, as the same may bevaried without departing from the spirit of my invention. Having thusascertained the nature of my invention and set forth a constructionembodying the same, what I claim as new, and desire to secure by LettersPatent of the United States, -isa In a boot and shoe trimming machine, acutter-shaft, a cutter-head mounted on said shaft carrying bladesprovided with randing-lips,

a shield projecting over said randinglips and provided with a series ofsegmental concentric ribs extending over a portion of said cutter-headto center said shield with relation to said head and with the spacesbetween said ribs registering with said blades, a nut turned into thecenter of said shield, a screw passing through said nut into the end ofsaid shaft for holding said shield in place, and a

